I have made jerky in the oven. A food dehydrator would be better if you plan on doing a lots of batches.

There are many recipes. Just Google "Jerky Recipe". Give it a try.

Typical recipes run something like this :
First you thin slice lean meat (I use deer meat). Then you soak meat for a few hours in some mixture that usually contains something like
soy sauce or Worcestershire sauce and spices like salt, pepper, onion powder.

Turn oven on at lowest possible setting. Pat meat dry with paper towels. Put on racks. Stick a wooden spoon or stick in the door to leave a small crack. Go do something useful and check back every couple of hours. Will take 6-8 hours to dry.

I store in a zip lock bag in freezer, but it will be fine at room temperature if you get it dry enough. The salt you added to the meat also helps with storage.